Back to Search
Start Over
Associations of Source-Specific Fine Particulate Matter With Emergency Department Visits in California.
- Source :
- American Journal of Epidemiology; 9/15/2016, Vol. 184 Issue 6, p450-459, 10p
- Publication Year :
- 2016
-
Abstract
- While many studies have investigated the health effects associated with acute exposure to fine particulate matter (particulate matter with an aerodynamic diameter less than or equal to 2.5 µm (PM<subscript>2.5</subscript>)), very few have considered the risks of specific sources of PM<subscript>2.5</subscript>. We used city-specific source apportionment in 8 major metropolitan areas in California from 2005-2009 to examine the associations of source-specific PM<subscript>2.5</subscript> exposures from vehicular emissions, biomass burning, soil, and secondary nitrate and sulfate sources with emergency department visits (EDVs) for cardiovascular and respiratory diseases, including 7 subclasses. Using a case-crossover analysis, we observed associations of vehicular emissions with all cardiovascular EDVs (excess risk = 1.6%, 95% confidence interval: 0.9, 2.4 for an interquartile-range increment of 2.8 µg/m³) and with several subclasses of disease. In addition, vehicular emissions, biomass burning, and soil sources were associated with all respiratory EDVs and with EDVs for asthma. The soil source, which includes resuspended road dust, generated the highest risk estimate for asthma (excess risk = 4.5%, 95% confidence interval: 1.1, 8.0). Overall, our results provide additional evidence of the public health consequences of exposure to specific sources of PM<subscript>2.5</subscript> and indicate that some sources of PM<subscript>2.5</subscript> may pose higher risks than the overall PM<subscript>2.5</subscript> mass. [ABSTRACT FROM AUTHOR]
- Subjects :
- ASTHMA risk factors
AIR pollution
CARDIOVASCULAR diseases
CONFIDENCE intervals
CROSSOVER trials
HOSPITAL emergency services
LUNG diseases
OBSTRUCTIVE lung diseases
EVALUATION of medical care
MEDICAL care use
POWER resources
PROBABILITY theory
RESEARCH funding
LOGISTIC regression analysis
ENVIRONMENTAL exposure
PARTICULATE matter
DATA analysis software
ODDS ratio
Subjects
Details
- Language :
- English
- ISSN :
- 00029262
- Volume :
- 184
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- American Journal of Epidemiology
- Publication Type :
- Academic Journal
- Accession number :
- 118129647
- Full Text :
- https://doi.org/10.1093/aje/kwv343